Answer:
y=-3x+7
Explanation:
In the slope intercept form of y=mx+b, m represents the slope of the line and b represents the y intercept, or where the line crosses the y axis (where x is 0). The line can clearly be seen crossing the y axis at 7. To find the slope, you need to find how much the line "rises" for a certain amount of "run". For each 1 unit that the line goes to the side, it moves 3 down, meaning that it has a slope of -3. Therefore, the equation of this line is y=-3x+7. Hope this helps!